added the left-parenthesis word (comments)

[rrq/rrqforth.git] / rrqforth.asm

diff --git a/rrqforth.asm b/rrqforth.asm
index 765b8fc26497555fb3c2a6373344cd0c3eaabf1f..7c1b5ca1ed314decfdfb7dbec0176ca2eecb40fb 100644 (file)
--- a/rrqforth.asm
+++ b/rrqforth.asm
@@ -73,6 +73,13 @@ dostring:
        pushpname rax
        next
 
+       WORD p_calltrace,'calltrace',dovalue
+       ;; Common call point for debugging
+       ;; rax = cfa of called word
+       ;; rsi = cell* of next forth word
+       ;; [$rsp] = from where the call was
+       ret
+
 include 'syscalls.asm'
 
 ;;; ========================================
@@ -186,7 +193,28 @@ include 'compile.asm'
        ;; Pointer to initial argument block
        dq 0       ; *(int argc,(char*[argc]) argv)
 
-;;; The main entry point.
+       WORD p_lparen,'(',fasm,IMMEDIATE
+       pushr rsi
+p_lparen_loop:
+       DOFORTH  p_stdin, p_read_word
+       pop rax
+       pop rbx
+       cmp rax,0 ; end of stream
+       je p_lparen_exit
+       cmp rax,1
+       jne p_lparen_loop
+       push rbx
+       push qword ')'
+       push 1
+       DOFORTH p_strncmp
+       pop rax
+       cmp rax,0
+       jne p_lparen_loop
+p_lparen_exit:
+       popr rsi
+       next
+       
+;;; ******** The main entry point. ********
 main:  
        ;; Initial rsp points to the arguments block of size (64 bits)
        ;; followed by the argument pointers.
@@ -211,13 +239,21 @@ last_forth_word:
 p_quit_INITIALIZED:
        ;; Initial blurb
        FORTH
-       dq p_program_version, p_tell, p_stdin, p_evaluate_stream
+       dq p_program_version
+       dq p_tell
+       dq p_stdin
+       dq p_evaluate_stream
        BRANCH 0,p_quit_ERROR
-       dq p_false, sys_exit
+       dq p_false
+       dq sys_exit
 p_quit_ERROR:
        dq p_literal_string
        STRING 10,'*** Unknown word: '
-       dq p_tell, p_this_word, p_2get, p_tell, p_literal_string
+       dq p_tell
+       dq p_this_word
+       dq p_2get
+       dq p_tell
+       dq p_literal_string
        STRING 10
        dq p_tell
        ENDFORTH